Loose leaf binder



June 1, 1937. P. o. UNGER- LOOSE LEAF BINDER Filed Aug. 11, 1934 PAUL IUEA TOR 0. U/VGfQ ATTORNEY.

Patented June 1, 1937 UNITED STATES PATENT orrice 2,082,558 LOOSE LEAF BINDER Raul 0. Unger, Glen Ellyn, Ill., assignor to Wilson-Jones Company, Chicago, 111., a corporation of Massachusetts Application August 11, 1934, Serial No. 739,401 3 Claims. (01. 129-13) This invention relates to a loose leaf binder, A supporting bracket I5 has two outwardly exand more particularly to a heavy duty binder of tending flanges l6 permanently secured to the the post binder type. back section 3 by rivets H, or in any other suit- It is an object of this invention to provide able manner. The bracket is provided with an 5 simple, inexpensive and efiioient means for supupstanding portion l8 adapted to be perr'nanent- 5 porting the free ends of the sheet holding posts 1y secured to the free end of the tubular post of a loose leaf binder, so that the posts will not M in any Suitab e manner to form a rigid D- sag when subjected to heavy loads, without inport o h end f the 1 terfering with the normal operation of the The ups an po n l8 o t e upp t 10 binder. Other objects of this invention will bebracket is sufficiently narrow at a p u a y of 10 come apparent upon reading the following desheets l9 provided ,with conventional slotted scription taken in conjunction with the accomh s it y e p d on the Pests Without panying drawing, in which any difficulty. The structure described is also Figure 1 is a perspective view of a loose leaf suitable for use in connection with sheets probinder embodying the invention, with the covers Vided With Wide notches, instead of Slotted holes, 15 removed and with the sheets broken away to fain registration With the posts because the.

cilitate illustration of the invention; posts l4 help support sheets of this type when Figure 2 s a fragmentary top plan View of th the binder lies on its back, and the posts will be structure of Figure 1 with parts broken away; forced out of alignme t unless they are p Figure 3 is a cross sectional View of the post Vid d W upp means. 20 structure of Figure 1; and In the preferred form, as illustrated in Fig- Figure 4 is a detail perspective view of th ure 4, the portion 13 is notched at the lower supporting bracket and the end of the post to half of its outer edge, to form a projection 2i. which it is adapted to be secured. The depth of the cut away portion is prefer- In the drawing the reference numerals 2 and ably the Same as the thickness of the tubular 5 3 indicate a pair of telescoping back sections. 130st The pp edge f the tubular P The edges of the sections are bent over, as indiis notched. as indicated at 2 to permit the cated at 4 and 5, respectively, to form smooth, projection 21 t fit snu ly th i Th ut r rigid edge extremities. The folded edges 5 fit edge of the post I l and they p l i n 2| a e within the edges 4 so that the two back sections integrally united in y Suitable an e Suc may readily slide transversely relative to each as brazing Weldingother. It will be understood that any suitable If desired, the notch in Portion n binding material may be secured to the binder the edge of the P y b im ated and in any desired manner to form covers and to the portion is secured to the P M in a y cover the metal back members, suitable manner, or even left unsecured. How- The back section 2 is provided with flange ever, the preferred form described above pro- 6 to which is secured one or more co v ti l vides a more satisfactory structure because of tubular posts 1 having a split free end. A screw the rigid, positive Support it p v d A Slut Or 8 holds a conical wedge 9 (Figure 3) in the aperture of any desired Shape might be substi- 40 mouth of the tubular post 1. The wedge tuted for the notch 22. In this event, the up- 40 her 9 is hollow, and is threaded on its interior standin p t 18 the sup rting bracket surface to receive the thread of the screw 8. Would he D With a Suitably p P O- Tightening movement of the screw 8 pulls the i i t r p h p j tion 2|. wedge 9 up into the post to expand the split end Although I have cieselihed Only One p e ed of the post when it is desired to hold the back embodiment of my invention in a i Will be 45 sections against expansion. A transfer bar IU understood that Various Changes a d modificaprovided with any desired number of posts It tions might be made without departing from the may be inserted over the posts I. spirit or scope of my invention. Accordingly, I The back section 3 is provided with a flange do not desire to be restricted to the exact de- I2 similar tothe flange 6. The flange 12 carries tails of construction described, except as limited 50 a plurality of sheet aligning posts I3 similar to by the pp e imsthe posts II and is provided with a tubular post I claim: In registering with each post 1. The post I4 is In a l ose leaf d a sheet mp e p t of slightly larger diameter than the post 1 and notched at one end, and a supporting bracket is adapted to have the post 1 telescope therein. comprising an upstanding portion and a flange 55 3. In a loose leaf binder, a hollow sheet impaling post having a notch extending through the wall of the post atone end thereof, and a supporting bracket comprising an upstanding portion and a flange extending at right angles thereto, said upstanding portion having a projection fitting into said notch, said projection terminating substantially flush with the inner surface of the wall through which it projects and permanently secured thereto.

PAUL O. UNGER. 

